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Solder Alloy 301 vs. AWS E307

Solder alloy 301 belongs to the otherwise unclassified metals classification, while AWS E307 belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 301 and the bottom bar is AWS E307.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 40
200
Elongation at Break, % 51
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 15
78
Tensile Strength: Ultimate (UTS), MPa 55
660

Thermal Properties

Latent Heat of Fusion, J/g 55
290
Melting Completion (Liquidus), °C 140
1420
Melting Onset (Solidus), °C 140
1370
Specific Heat Capacity, J/kg-K 160
480
Thermal Conductivity, W/m-K 19
15
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
2.4

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 13
3.5
Embodied Energy, MJ/kg 210
49

Common Calculations

Stiffness to Weight: Axial, points 2.5
14
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.8
24
Strength to Weight: Bending, points 3.7
22
Thermal Diffusivity, mm2/s 13
4.1
Thermal Shock Resistance, points 7.2
17

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 56.5 to 59
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.040 to 0.14
Chromium (Cr), % 0
18 to 21.5
Copper (Cu), % 0 to 0.050
0 to 0.75
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
59.6 to 69.2
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
3.3 to 4.8
Molybdenum (Mo), % 0
0.5 to 1.5
Nickel (Ni), % 0 to 0.010
9.0 to 10.7
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 41 to 43
0
Zinc (Zn), % 0 to 0.0010
0